Raspberry Decline Unrelated to Maple Leaf Mold; More Details Needed

4-yr raspberry patch (thumb-sized fruit, maple leaf mulch) dying; maple leaves show mold. Owner suspects mold killing raspberries.

Mold Is Innocent

Maple leaf mold = saprophyte decomposing dead leaves. Host-specific—cannot infect raspberry (different family).

When did decline start?
Which canes affected: primocanes (1st yr, no fruit) or floricanes (2nd yr, fruited)?
Leaf/cane spots? Color, pattern?
Root/crown inspection for rot or borers.

Reply with details for targeted advice.

Plant Diseases: Japanese Maple Honeydew and Sooty Mold: Aphid or Scale Infestation; Japanese Maple Spring Leaf Damage: Herbicide Injury vs. Winter Kill; Multiple Tree Decline: Red Maple, Rhododendron, Magnolia, Japanese Maples; White/Gray Leaves on Japanese Red Maple: Need Photo; Maple Tree Multiple Spot Syndrome: Insect, Fungus, and Algae Complex; Maple Cottony Scale Infestation: Large Tree Management Strategy; Maple Leaf Galls: Harmless Insect Structures, No Human Risk; Maple Leaf Scorch from Excess Rain: No Spray Needed This Late; Maple Tar Spot and Crown Thinning: Management and Tree Vigor; Maple Anthracnose: Black Leaves and Summer Defoliation

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